2.Service industry:Petrochemical products processing and other chemical industry, gas and oil exploitation and refining, ocean engineering, pollution control and waste disposal,special material repair and welding etc. In addition, Shengjiang combines nearly 30 years experience in cladding welding with the mature technology in specialmaterial field of Wilhelm Group parent company, and already have a composite welding and precast ability of special materials, such as nickel based alloy, duplex steel,super duplex steel welding, ensure the high quality products and reduce the cost of manufacturing and installation for customers